CA2360715A1 - Communication control apparatus and method - Google Patents

Communication control apparatus and method Download PDF

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Publication number
CA2360715A1
CA2360715A1 CA002360715A CA2360715A CA2360715A1 CA 2360715 A1 CA2360715 A1 CA 2360715A1 CA 002360715 A CA002360715 A CA 002360715A CA 2360715 A CA2360715 A CA 2360715A CA 2360715 A1 CA2360715 A1 CA 2360715A1
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CA
Canada
Prior art keywords
node
group
identification information
particular function
nodes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002360715A
Other languages
French (fr)
Other versions
CA2360715C (en
Inventor
Junichi Fujimori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Corp
Original Assignee
Yamaha Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yamaha Corp filed Critical Yamaha Corp
Publication of CA2360715A1 publication Critical patent/CA2360715A1/en
Application granted granted Critical
Publication of CA2360715C publication Critical patent/CA2360715C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/20—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers
    • H01S5/22—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure
    • H01S5/227—Buried mesa structure ; Striped active layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/0033—Recording/reproducing or transmission of music for electrophonic musical instruments
    • G10H1/0041—Recording/reproducing or transmission of music for electrophonic musical instruments in coded form
    • G10H1/0058—Transmission between separate instruments or between individual components of a musical system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0641—Change of the master or reference, e.g. take-over or failure of the master
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0079—Receiver details
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
    • G10H2240/171—Transmission of musical instrument data, control or status information; Transmission, remote access or control of music data for electrophonic musical instruments
    • G10H2240/175—Transmission of musical instrument data, control or status information; Transmission, remote access or control of music data for electrophonic musical instruments for jam sessions or musical collaboration through a network, e.g. for composition, ensemble playing or repeating; Compensation of network or internet delays therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
    • H04H60/04—Studio equipment; Interconnection of studios
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0016—Arrangements for synchronising receiver with transmitter correction of synchronization errors
    • H04L7/002—Arrangements for synchronising receiver with transmitter correction of synchronization errors correction by interpolation
    • H04L7/0029—Arrangements for synchronising receiver with transmitter correction of synchronization errors correction by interpolation interpolation of received data signal

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electromagnetism (AREA)
  • Geometry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Small-Scale Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Communication Control (AREA)
  • Computer And Data Communications (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

One or more nodes on a communication network are selected and set as one node group. In each of the nodes, group identification information representing the node group to which the node belongs is stored in advance. The group identification information is attached to the header of a data packet to be transmitted, so that nodes constituting a node group that should commonly receive data can be readily identified by comparing the group identification information imparted to the transmitted data packet and the group identification information stored in each receiving node. Given node can choose to become a node of a particular function, such as a clock master node, in which case control is performed to delete, from the node group, a node having so far played the role of the node of the particular function in such a manner that there exists only one node of the particular function per node group.
CA002360715A 2000-10-31 2001-10-31 Communication control apparatus and method Expired - Fee Related CA2360715C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000333656A JP3584873B2 (en) 2000-10-31 2000-10-31 Communication control device and communication system
JP2000-333656 2000-10-31

Publications (2)

Publication Number Publication Date
CA2360715A1 true CA2360715A1 (en) 2002-04-30
CA2360715C CA2360715C (en) 2005-06-21

Family

ID=18809693

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002360715A Expired - Fee Related CA2360715C (en) 2000-10-31 2001-10-31 Communication control apparatus and method

Country Status (5)

Country Link
US (1) US7158488B2 (en)
EP (2) EP1202490A3 (en)
JP (1) JP3584873B2 (en)
CA (1) CA2360715C (en)
DE (1) DE60144033D1 (en)

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US8234395B2 (en) 2003-07-28 2012-07-31 Sonos, Inc. System and method for synchronizing operations among a plurality of independently clocked digital data processing devices
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US10613817B2 (en) 2003-07-28 2020-04-07 Sonos, Inc. Method and apparatus for displaying a list of tracks scheduled for playback by a synchrony group
US11106425B2 (en) 2003-07-28 2021-08-31 Sonos, Inc. Synchronizing operations among a plurality of independently clocked digital data processing devices
US11650784B2 (en) 2003-07-28 2023-05-16 Sonos, Inc. Adjusting volume levels
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JP4305153B2 (en) 2003-12-04 2009-07-29 ヤマハ株式会社 Music session support method, musical session instrument
US9977561B2 (en) 2004-04-01 2018-05-22 Sonos, Inc. Systems, methods, apparatus, and articles of manufacture to provide guest access
US9374607B2 (en) 2012-06-26 2016-06-21 Sonos, Inc. Media playback system with guest access
US7836402B2 (en) * 2004-04-16 2010-11-16 Alcatel Lucent Multiple link connector list
US8326951B1 (en) 2004-06-05 2012-12-04 Sonos, Inc. Establishing a secure wireless network with minimum human intervention
US8868698B2 (en) 2004-06-05 2014-10-21 Sonos, Inc. Establishing a secure wireless network with minimum human intervention
US7801068B2 (en) * 2004-12-29 2010-09-21 Motorola, Inc. Selectively receiving data in a multicast environment
US7434154B2 (en) * 2005-01-07 2008-10-07 Dell Products L.P. Systems and methods for synchronizing media rendering
JP4432814B2 (en) * 2005-03-25 2010-03-17 ヤマハ株式会社 Performance data communication management system and performance data communication management device
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Also Published As

Publication number Publication date
US7158488B2 (en) 2007-01-02
JP2002141915A (en) 2002-05-17
EP1746752B1 (en) 2011-02-09
CA2360715C (en) 2005-06-21
EP1202490A3 (en) 2005-03-16
EP1746752A3 (en) 2008-01-16
EP1202490A2 (en) 2002-05-02
EP1746752A2 (en) 2007-01-24
DE60144033D1 (en) 2011-03-24
US20020080783A1 (en) 2002-06-27
JP3584873B2 (en) 2004-11-04

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EEER Examination request
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Effective date: 20151102